1 Pull request merged by 1 person

• Handle lock file 3 version when caching the typings ensuring we can reuse already installed packages

  #61730 merged May 21, 2025

5 Pull requests opened by 5 people

• Initialize the map for dts to reference and source to reference when parsing project reference as its always needed

  #61746 opened May 21, 2025

• Suggest completions for type arguments of expressions

  #61758 opened May 23, 2025

• Return an error if either the left or right value are of type boolean

  #61759 opened May 23, 2025

• fix(61747): for (using of = is incorrectly parsed

  #61764 opened May 25, 2025

• Add IntegerTypedArray type for use with crypto.getRandomValues

  #61767 opened May 27, 2025

11 Issues closed by 7 people

• TS looses track of enum coming from module declaration

  #61744 closed May 26, 2025

• TS2823 import attributes error when using node16 module

  #60507 closed May 23, 2025

• api albaRiyhm link cycle

  #61757 closed May 23, 2025

• private constructor(){}, It is necessary to also explicitly limit instantiation in the compiled js

  #61736 closed May 23, 2025

• Unexpected differences in distribution over union types: type string | 5 behaves differently than type string | [5]

  #61753 closed May 22, 2025

• Assingment type inference is broken with map, forEach

  #61755 closed May 22, 2025

• Overriding type of union works as declared type but not as generic type

  #61729 closed May 22, 2025

• TS Server Plugin rename supoort transform user input

  #61702 closed May 22, 2025

• Function definition parameter type inference

  #61715 closed May 22, 2025

• Suggestion: Reword error message "Property has no initializer and is not definitely assigned in the constructor"

  #61737 closed May 21, 2025

• Type predicates that are not biconditional

  #61740 closed May 21, 2025

22 Issues opened by 19 people

• enum member key should reject bigint

  #61772 opened May 27, 2025

• I'm

  #61771 opened May 27, 2025

• Improvable support for basic ways of checking the length of the arguments

  #61770 opened May 27, 2025

• [DTS] Object literal method with bigint is omitted in generated `.d.ts`, but class method works correctly

  #61769 opened May 27, 2025

• `IntegerTypedArray` type required for use with `crypto.getRandomValues`

  #61768 opened May 27, 2025

• Reference missing with declare module

  #61766 opened May 26, 2025

• [ServerErrors][TypeScript] 5.9.0-dev.20250525 vs 5.8.3

  #61765 opened May 25, 2025

• [ServerErrors][JavaScript] 5.9.0-dev.20250525 vs 5.8.3

  #61763 opened May 25, 2025

• [NewErrors] 5.9.0-dev.20250525 vs 5.8.3

  #61762 opened May 25, 2025

• not tracking potential state change in object literal with literal type property

  #61761 opened May 25, 2025

• Disallow bitwise operators with different const enum types

  #61760 opened May 25, 2025

• Spreading constrained generic parameters allows for invalid/unsafe return types

  #61754 opened May 22, 2025

• [BUG] This JSX tag requires the module path 'react/jsx-runtime' to exist, but none could be found. Make sure you have types for the appropriate package installed.

  #61756 opened May 22, 2025

• `declare namespace { using ... }` generates incorrect dts

  #61752 opened May 22, 2025

• Completions for type arguments of expressions

  #61751 opened May 22, 2025

• Tuples: maintaining type-param in the type of it's items

  #61750 opened May 22, 2025

• noUnusedLocals doesn't error when using a ...rest declaration

  #61748 opened May 21, 2025

• `for (using of =` is incorrectly parsed.

  #61747 opened May 21, 2025

• Intersection of `object` and array breaks homomorphism

  #61745 opened May 21, 2025

• Intersection with a mapped type breaks bypassing private assignability.

  #61743 opened May 21, 2025

• Design Meeting Notes, 5/21/2025

  #61742 opened May 21, 2025

• Missing references in TypeScript

  #61741 opened May 21, 2025

64 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• tsconfig should support suffix `.jsonc`

  #43121 commented on May 21, 2025 • 0 new comments

• Pipe/flow/chain type support

  #30370 commented on May 21, 2025 • 0 new comments

• New Feature Requesting for `const` Parameter

  #18497 commented on May 21, 2025 • 0 new comments

• @ts-ignore for the block scope and imports

  #19573 commented on May 21, 2025 • 0 new comments

• Format on paste deletes jsx comment content

  #61749 commented on May 22, 2025 • 0 new comments

• Javascript: Object.assign to assign property values for classes is not respected

  #26792 commented on May 22, 2025 • 0 new comments

• Index signatures in type definitions: now we have `noUncheckedIndexedAccess`, include or omit `undefined`?

  #42810 commented on May 22, 2025 • 0 new comments

• refactor: New file generates import from wrong module specifier

  #58897 commented on May 22, 2025 • 0 new comments

• Missing Handbook Content

  #59930 commented on May 22, 2025 • 0 new comments

• tsconfig - Ignore errors by ids

  #29950 commented on May 22, 2025 • 0 new comments

• I triggered the Debug assertion `Revert #54442 and add a testcase with whatever triggered this` when running with `--diagnostics`

  #61438 commented on May 22, 2025 • 0 new comments

• HOC returned component props can not differ from HOC generic props

  #28938 commented on May 23, 2025 • 0 new comments

• Request: Class Decorator Mutation

  #4881 commented on May 23, 2025 • 0 new comments

• No IntelliSense for generic literal types

  #34771 commented on May 23, 2025 • 0 new comments

• No string completions in type arguments where constrained to string literal union

  #52898 commented on May 23, 2025 • 0 new comments

• Expose design-time type information in TC39 decorator metadata when `emitDecoratorMetadata: true`

  #57533 commented on May 23, 2025 • 0 new comments

• Module resolution: NodeNext breaks typechecking

  #60561 commented on May 23, 2025 • 0 new comments

• Different behavior for type reference directive in nodenext based on whether types are in @types or not

  #47444 commented on May 23, 2025 • 0 new comments

• VSCode Find All References Not Working for Imported Functions

  #59134 commented on May 23, 2025 • 0 new comments

• No file ending when adding import

  #60451 commented on May 23, 2025 • 0 new comments

• Thousands of false positives that seem to crash the TypeScript extension

  #60117 commented on May 23, 2025 • 0 new comments

• Rethink AutoImportProvider automatic limits

  #60704 commented on May 23, 2025 • 0 new comments

• rewriteRelativeImportExtensions does not rewrite the extension for an import expressions unless the file is detected to be a module

  #60599 commented on May 23, 2025 • 0 new comments

• require(esm) 'module.exports' interop export name support

  #61645 commented on May 24, 2025 • 0 new comments

• Preserve ordered yield types when no logic is involved

  #43150 commented on May 24, 2025 • 0 new comments

• `inherit` keyword as shorthand to refer to super class fields and methods.

  #36165 commented on May 25, 2025 • 0 new comments

• "The inferred type of X cannot be named without a reference to Y" (TS2742) still happens, when working with npm link to link packages manually

  #58914 commented on May 26, 2025 • 0 new comments

• TS 5.6 `files` missing from `--showConfig` (with absolute / ``${configDir}`` `include` paths)

  #60199 commented on May 26, 2025 • 0 new comments

• Local function variables are suggested within its default arguments

  #61461 commented on May 26, 2025 • 0 new comments

• Interface extension with omit produce incoherent results: Omit<C | D, 'a'> !== Omit<C, 'a'> | Omit<D, 'a'>

  #42680 commented on May 27, 2025 • 0 new comments

• disallow comparing to null and undefined unless they are valid cases in strict null mode

  #11920 commented on May 27, 2025 • 0 new comments

• Support @class in JSDoc

  #12681 commented on May 27, 2025 • 0 new comments

• Error inferring types of promise function

  #17873 commented on May 27, 2025 • 0 new comments

• this any typed in some JS object literals

  #22058 commented on May 27, 2025 • 0 new comments

• Suggestion: Type annotations and interfaces for function declarations

  #22063 commented on May 27, 2025 • 0 new comments

• Allow extending types referenced through interfaces

  #31843 commented on May 27, 2025 • 0 new comments

• Support Intellisense for string/number literals in a widened union

  #33471 commented on May 27, 2025 • 0 new comments

• Implicit Symbol.iterator call in for..of loops / spread destructuring doesn't infer `this` generic type parameter

  #38388 commented on May 27, 2025 • 0 new comments

• improper declared type cause narrow type not work when its computed type is not union.

  #39114 commented on May 27, 2025 • 0 new comments

• In JSDoc @type is not a type declaration, which it is much more like type conversion.

  #39650 commented on May 27, 2025 • 0 new comments

• Compile error if I named last array destructuring element.

  #41548 commented on May 27, 2025 • 0 new comments

• Error when trying to assign a subclass of a base class with generics to `typeof` of that base class

  #41770 commented on May 27, 2025 • 0 new comments

• Correctly handle generic functions (e.g.: `Object.freeze`) passed as callbacks to generic functions (e.g.: `Array.prototype.map`)

  #42862 commented on May 27, 2025 • 0 new comments

• Broken emit when `Infinity` or `‑Infinity` ends up in a type position

  #42905 commented on May 27, 2025 • 0 new comments

• Support inferring `never` as the return type in JavaScript when overriding a class method that returns `never`

  #46791 commented on May 27, 2025 • 0 new comments

• Typescript 4.2.x - incorrectly infered generic return type of a record union (extra undefined)

  #43943 commented on May 27, 2025 • 0 new comments

• Intersection causes incorrect type compatability

  #48720 commented on May 27, 2025 • 0 new comments

• Regression in 4.8 where string union type widens to string

  #50635 commented on May 27, 2025 • 0 new comments

• Order of ReadonlySet/ReadonlyMap in union causes differing key inference

  #52313 commented on May 27, 2025 • 0 new comments

• Expression produces a union type that is too complex to represent

  #53234 commented on May 27, 2025 • 0 new comments

• Crash when defining `Array` type via `[]` syntax

  #57009 commented on May 27, 2025 • 0 new comments

• mapped type with remapped keys unexpectedly widens type

  #57265 commented on May 27, 2025 • 0 new comments

• Inconsistent type inference on overloaded function types

  #57351 commented on May 27, 2025 • 0 new comments

• Error not issued when global type is an alias of an object type literal

  #57564 commented on May 27, 2025 • 0 new comments

• Inconsistent typechecking with require() in JS and TS

  #60032 commented on May 27, 2025 • 0 new comments

• Remapped property names has wrong completion, error messages and code actions (snippets)

  #59769 commented on May 27, 2025 • 0 new comments

• MsBuild: Target `TypeScriptDeleteOutputFromOtherConfigs` can grab tsc.out from other Configuration

  #50428 commented on May 27, 2025 • 0 new comments

• Should we set '"types": []' for 'tsc init'?

  #39354 commented on May 27, 2025 • 0 new comments

• tsc --init update 2024

  #58420 commented on May 28, 2025 • 0 new comments

• Type safety with `TemplateStringsArray` and tag functions

  #33304 commented on May 28, 2025 • 0 new comments

• Allow some per file compiler options

  #49886 commented on May 23, 2025 • 0 new comments

• Add numeric constraints to type parameters of mapped types with narrowed down array constraints

  #55386 commented on May 27, 2025 • 0 new comments

• Check expression operand equivalence in isMatchingReference before computing property key equivalence

  #61608 commented on May 27, 2025 • 0 new comments

• Bump the github-actions group across 1 directory with 2 updates

  #61726 commented on May 26, 2025 • 0 new comments